ppt econ 9e_one_click_ch15
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Economics book slide Case and Fair a good path to learn basics of economicsTRANSCRIPT
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 1 of 18
PowerPoint Lectures for
Principles of Economics, 9e
By
Karl E. Case, Ray C. Fair & Sharon M. Oster
; ;
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 2 of 18
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 3 of 18
15Monopolistic Competition
Fernando & Yvonn Quijano
Prepared by:
PART III MARKET IMPERFECTIONS ANDTHE ROLE OF GOVERNMENT
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 4 of 18
15CHAPTER OUTLINE
MonopolisticCompetition
Industry Characteristics
Product Differentiation and Advertising
How Many Varieties?
How Do Firms Differentiate Products?
Advertising
Price and Output Determination in Monopolistic Competition
Product Differentiation and Demand Elasticity
Price/Output
Determination in the Short Run
Price/Output Determination in the Long Run
Economic Efficiency and Resource Allocation
PART III MARKET IMPERFECTIONS ANDTHE ROLE OF GOVERNMENT
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 5 of 18
Monopolistic Competition
FIGURE 13.2 Characteristics of Different Market Organizations
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 6 of 18
Industry Characteristics
monopolistic competition A common form of industry (market) structure in the United States, characterized by a large number of firms, no barriers to entry, and product differentiation.
TABLE 15.1 Percentage of Value of Shipments Accounted for by the Largest Firms in Selected Industries, 2002
Industry Designation Four LargestFirms
Eight Largest Firms
Twenty Largest Firms
Number ofFirms
Travel trailers and campers 38 45 58 733
Games, toys 39 48 63 732
Wood office furniture 34 43 56 546
Book printing 33 54 68 560
Curtains and draperies 17 25 38 1,778
Fresh or frozen seafood 14 24 48 529
Women’s dresses 18 23 48 528
Miscellaneous plastic products 6 10 18 6,775
Source: U.S. Department of Commerce, Bureau of the Census, 1997 Census of Manufacturers, Concentration Ratios in Manufacturing. Subject Series EC92m315, June, 2001.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 7 of 18
Product Differentiation and Advertising
How Many Varieties?
product differentiation A strategy that firms use to achieve market power. Accomplished by producing products that have distinct positive identities in consumers’ minds.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 8 of 18
Product Differentiation and Advertising
How Do Firms Differentiate Products?
horizontal differentiation Products differ in ways that make them better for some people and worse for others.
behavioral economics A branch of economics that uses the insights of psychology and economics to investigatedecision making.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 9 of 18
Product Differentiation and Advertising
How Do Firms Differentiate Products?
commitment device Actions that individuals take in one period to try to control their behavior in a future period.
vertical differentiation A product difference that, from everyone’s perspective, makes a product better than rival products.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 10 of 18
An Economist Makes TeaBottled iced tea is a classic example of a monopolistically competitive market. None of the brands are exactly alike. Nor are the teas priced the same.
Goldman and Nalebuff discovered that sugar beyond some point adds little taste, yet comes at a health cost—more calories. Given consumers’ new awareness of healthy and natural foods, Honest Tea became an overnight success.
Product Differentiation and Advertising
How Do Firms Differentiate Products?
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 11 of 18
Product Differentiation and Advertising
Advertising
TABLE 15.2 Total AdvertisingExpenditures in 2006
Billions of Dollars
Newspapers $49.0
Television 66.8
Direct mail 59.6
Yellow pages 14.4
Internet 15.0
Radio 19.1
Magazines 24.0
Total 247.9
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 12 of 18
TABLE 15.3 Domestic Advertising Spending by Category
in 2006 in Billions of Dollars
Rank Category 2006
1 Automotive $19.82 Retail 19.13 Telecommunications 11.04 Medicine & remedies 9.25 General services 8.76 Financial services 8.77 Food, beverages, & candy 7.28 Personal care 5.79 Airlines, hotels, car rental, travel 5.4
10 Movies, recorded video, & music 5.411 Restaurants 5.312 Media 5.113 Government, politics, religion 3.514 Insurance 3.515 Real estate 3.116 Apparel 2.917 Computers, software 2.518 Home furnishings 2.219 Beer, wine, & liquor 2.120 Education 1.9
Product Differentiation and Advertising
Advertising
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 13 of 18
Product Differentiation and Advertising
The advocates of spirited competition believe that differentiated products and advertising give the market system its vitality and are the basis of its power. They are the only ways to begin to satisfy the enormous range of tastes and preferences in a modern economy. Product differentiation also helps to ensure high quality and efficient production, and advertising provides consumers with the valuable information on product availability, quality, and price that they need to make efficient choices in the marketplace.
The Case for Advertising
Advertising
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 14 of 18
Product Differentiation and Advertising
The bottom line, critics of product differentiation and advertising argue, is waste and inefficiency. Enormous sums are spent to create minute, meaningless, and possibly nonexistent differences among products. Advertising raises the cost of products and frequently contains very little information. Often, it is merely an annoyance. Product differentiation and advertising have turned the system upside down: People exist to satisfy the needs of the economy, not vice versa. Advertising can lead to unproductive warfare and may serve as a barrier to entry, thus reducing real competition.
The Case Against Product Differentiation and Advertising
Advertising
Open Questions
There are strong arguments on both sides of the advertising debate, and even the empirical evidence yields to conflicting conclusions.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 15 of 18
Can Information Reduce Obesity?Policy makers have been working to increase the level of information that consumers have about products. In the early 1990s, the Food and Drug Administration passed rules requiringmost processed foods sold in grocery stores to carry nutrition labels. The current hot topic in the labeling area involves restaurant meals. With growing obesity in the United States, many policy makers think that one way to fight the problem is to require calorie and fat labeling in restaurants.
Product Differentiation and Advertising
Advertising
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 16 of 18
Price and Output Determination in Monopolistic Competition
Product Differentiation and Demand Elasticity
FIGURE 15.2 Product Differentiation Reduces the Elasticity of Demand Facing a Firm
The demand curve that a monopolistic competitor faces is likely to be less elastic than the demand curve that a perfectly competitive firm faces. Demand is more elastic than the demand curve that a monopolist faces because close substitutes for the products of a monopolistic competitor are available.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 17 of 18
Price and Output Determination in Monopolistic Competition
Price/Output Determination in the Short Run
FIGURE 15.3 Monopolistic Competition in the Short RunIn the short run, a monopolistically competitive firm will produce up to the point MR = MC. At q0 = 2,000 in panel a, the firm is earning short-run profits equal to P0ABC = $2,000.
In panel b, another monopolistically competitive firm with a similar cost structure is shown facing a weaker demand and suffering short-run losses at q1 = 1,000, equal to CABP1 =
$1,000.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 18 of 18
Price and Output Determination in Monopolistic Competition
Price/Output Determination in the Long Run
FIGURE 15.4 Monopolistically Competitive Firm at Long-Run Equilibrium
As new firms enter a monopolistically competitive industry in search of profits, the demand curves of profit-making existing firms begin to shift to the left, pushing marginal revenue with them as consumers switch to the new close substitutes. This process continues until profits are eliminated, which occurs for a firm when its demand curve is just tangent to its average total cost curve.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 19 of 18
Economic Efficiency and Resource Allocation
Because entry is easy and economic profits are eliminated in the long run, we might conclude that the result of monopolistic competition is efficient. There are two problems, however.
First, once a firm achieves any degree of market power by differentiating its product (as is the case in monopolistic competition), its profit-maximizing strategy is to hold down production and charge a price above marginal cost.
Second, the final equilibrium in a monopolistically competitive firm is necessarily to the left of the low point on its average total cost curve.
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© 2009 Pearson Education, Inc. Publishing as Prentice Hall Principles of Economics 9e by Case, Fair and Oster 20 of 18
REVIEW TERMS AND CONCEPTS
monopolistic competition
product differentiation
vertical differentiation
behavioral economicscommitment devicehorizontal differentiation